EP0129648B1 - Récepteur de télévision avec insertion de texte - Google Patents

Récepteur de télévision avec insertion de texte Download PDF

Info

Publication number
EP0129648B1
EP0129648B1 EP84103607A EP84103607A EP0129648B1 EP 0129648 B1 EP0129648 B1 EP 0129648B1 EP 84103607 A EP84103607 A EP 84103607A EP 84103607 A EP84103607 A EP 84103607A EP 0129648 B1 EP0129648 B1 EP 0129648B1
Authority
EP
European Patent Office
Prior art keywords
text
switched
signals
viewing screen
line interlacing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84103607A
Other languages
German (de)
English (en)
Other versions
EP0129648A3 (en
EP0129648A2 (fr
Inventor
Günter Gleim
Siegfried Quandt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Priority to AT84103607T priority Critical patent/ATE35602T1/de
Publication of EP0129648A2 publication Critical patent/EP0129648A2/fr
Publication of EP0129648A3 publication Critical patent/EP0129648A3/de
Application granted granted Critical
Publication of EP0129648B1 publication Critical patent/EP0129648B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay

Definitions

  • the invention relates to an image display device according to the preamble of the first claim.
  • DE-C-3 038 144 it is known to display an image signal mixture on a screen, which is composed of images from, for example, a television program, i.e. the normal image broadcast by a television broadcaster, such as a moving scene, and readable characters, drawing elements superimposed on it and graphic characters or symbols from a Btx decoder or a teletext decoding circuit.
  • a television program i.e. the normal image broadcast by a television broadcaster, such as a moving scene
  • the object of the invention according to the cited patent was to provide an image display arrangement in which the appearance of the tremors in the reproduction of digitally generated image and / or text information is largely eliminated.
  • the solution provides, by means of a circuit arrangement for generating an image-frequency signal for such additional deflection in the vertical direction of one or more electron beams generated in the display tube, that the corresponding characters are successive in the image part representing the digitally generated image and / or text information Fields are written coincidentally on the display tube.
  • the known solution is based on the knowledge that circuit arrangements for reducing the jitter, which are assigned to the deflection part of the image display arrangement, can be simpler than circuit arrangements in the signal processing part. This measure eliminates the cause, namely the line jump, of the disturbing appearance, but only in a part of the image in which the overlay of image and text occurs.
  • the Teletext or BTX decoder installed in the FS device.
  • the image display device for the playback of FS signals of a standard must transmit a signal on the basis of which the interlacing in the device is switched off. An additional signal line is then required for this.
  • Newer text overlay systems such as BTX also offer the option of so-called mix and box operation. This is understood to mean the transmission of an image signal mixture, the superimposed characters and / or texts being stored in a box-like manner with a color or brightness contrast from a line in box operation, while such a storage is not carried out in mix operation.
  • the interlace is switched on not only during text mode, but also in mix and box mode.
  • the normal television picture is interlaced as long as it is first-class because no picture characters and / or text information is displayed. Only when the viewer decides to display teletext or Btx signals and selects this type of playback by switching on the corresponding decoder, does he activate the switch of the time jump by pressing one of the keys on the Teletext or Btx keyboard. As soon as its communication has ended, the television picture, as it is now again without fade-in, is given priority again and therefore, as usual, with interlacing across the entire screen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Studio Circuits (AREA)

Claims (2)

1. Dispositif de restitution d'images pour la restitution au choix alternative ou simultanée aussi bien de signaux de télévision correspondant à l'une des normes usuelles de télévision que de signaux d'informations d'images et/ou de textes, produits sous forme numérique, et dans lequel l'entrelacement des lignes peut être supprimé moyennant la mise en oeuvre de n'importe quel procédé en ce qui concerne l'exécution technique de cette suppression, caractérisé en ce que, dans le mode de fonctionnement avec production d'une information vidéo conformément à une norme usuelle de télévision et/ou surimpression de signaux produits numériquement dans le cas du fonctionnement avec des images et/ou des textes et/ou des caractères et/ou dans le cas d'un fonctionnement Mix et/ou Box, l'entrelacement des lignes reste obligatoirement supprimé pour l'ensemble de l'écran, indépendamment du fait qu'une information vidéo conforme à l'une des normes usuelles de télévision soit visible ou non sur l'écran.
2. Dispositif de restitution d'images selon la revendication 1, caractérisé en ce que dans le cas où un décodeur est actif et où aucune information de surimpression n'est présente, l'entrelacement des lignes peut être à nouveau branché.
EP84103607A 1983-04-02 1984-04-01 Récepteur de télévision avec insertion de texte Expired EP0129648B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103607T ATE35602T1 (de) 1983-04-02 1984-04-01 Fernsehempfaenger mit texteinblendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3312097 1983-04-02
DE3312097A DE3312097C2 (de) 1983-04-02 1983-04-02 Bildwiedergabeanordnung bei Texteinblendung, insbesonder Mix- und Box-Betrieb

Publications (3)

Publication Number Publication Date
EP0129648A2 EP0129648A2 (fr) 1985-01-02
EP0129648A3 EP0129648A3 (en) 1986-01-29
EP0129648B1 true EP0129648B1 (fr) 1988-07-06

Family

ID=6195404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103607A Expired EP0129648B1 (fr) 1983-04-02 1984-04-01 Récepteur de télévision avec insertion de texte

Country Status (4)

Country Link
EP (1) EP0129648B1 (fr)
AT (1) ATE35602T1 (fr)
DE (1) DE3312097C2 (fr)
HK (1) HK101389A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01246978A (ja) * 1988-03-28 1989-10-02 Toshiba Corp 画像情報受信表示装置
GB9006776D0 (en) * 1990-03-27 1990-05-23 Ferguson Ltd Television receiver with additional display of characters
JP4677222B2 (ja) * 2004-11-26 2011-04-27 富士通株式会社 サーバ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734714B1 (de) * 1977-08-02 1979-01-04 Dornier System Gmbh Vorrichtung zur bildlichen Darstellung von Texten und Graphiken auf Bildschirmen von Fernsehgeraeten in Verbindung mit dem oeffentlichen Fernsprechnetz
DE2737166C2 (de) * 1977-08-18 1982-06-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und Schaltungsanordnung bei einem Fernsehbildempfänger zur abschaltbaren Unterdrückung der Zeilenzwischenlage
NL8002410A (nl) * 1979-10-15 1981-04-21 Philips Nv Beeldweergeefinrichting ingericht voor het als een geinterlinieerd televisie-beeld weergeven van een gemengd beeldsignaal.
DE2949020C2 (de) * 1979-12-06 1986-10-23 Loewe Opta Gmbh, 8640 Kronach Verfahren zur Beseitigung des Zwischenzeilenflimmerns bei der Darstellung von alphanumerischen Zeichen und graphischen Symbolen auf einem Monitor im Halbbildverfahren durch Vertikalversatz und Schaltungsanordnung zur Durchführung des Verfahrens
EP0039554A1 (fr) * 1980-04-30 1981-11-11 The Post Office Dispositifs d'affichage pour "teletext" et "viewdata"

Also Published As

Publication number Publication date
ATE35602T1 (de) 1988-07-15
HK101389A (en) 1989-12-29
DE3312097A1 (de) 1984-10-11
DE3312097C2 (de) 1985-01-24
EP0129648A3 (en) 1986-01-29
EP0129648A2 (fr) 1985-01-02

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